As you probably noticed by now, things like "time" (or car keys) can be very harsh on your iPhone.
Well, the situation might not be as desperate as you think. A very savvy iPhone user from the Macrumors forums came up with a way to give back your iPhone its original look for less than $50, including a new screen.
Alright, while changing the screen might be too much for most of us, restoring your iPhone case is actually a pretty accessible procedure at just a part of the price.
If you think you're up to it, go check it out.